VULNERABILITY INTELLIGENCE

CVE-2026-12329

CVSS score5.3 MEDIUM
EPSS probability0.31%
CISA KEVNot currently listed
Published2026-06-16
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Description

Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12.

Weakness classification

  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-416: Use After Free
  • CWE-476: NULL Pointer Dereference

Primary references